Hi.

I still got the problem with my XTR due to tail slide when flying backward.
Yes, I am in HH mode by useing piezo-integral in R50V2 tuning model and assigned Ch#5 to control Gyro gain.
What's the problem?

Yes I assign Gyro sens to ch#8 and used the variable slider on 9CHP to control this Gyro gain. I started from center of slider and slightly incresed to the maximum also do this same thing in reverse side, but head still not lock.

Thanks alot SwissKurt for your superb help.

Sure I am in piezo-integral.
I checked with the channel display F8 the slider working great no signal stuck and I switched to use the variable knob instead of the slider to see what happen.Still no head lock.
I confirmed by the channel display F8 every channels are perfect.
So what should I verify next?

I went to calibrate center and assign channel serveral times, but no success. What happen to me?

I would recommend making a recording of what you are experiencing and posting it. Have you changed any settings such as field of view or zoom that might give you the impression of tail drift when it's nothing more than perspective changing? Also make sure that you have the right gyro mode on your radio (GY or AVCS) and that on the sim you have the gyro channel assigned properly (+/-).

this is how i have mine set up and it work like it should . first go to auxch select and make sure that
ch 5 is on sw f
gyro sens mode gy
mix act
rate norm avc 50%
id1avc 65%
id 2 avc 70%

hold avc 50%
sw cond

ok now open xtr and bring up channel display
make sure channel 5 moves when you change from norm to id1 and id 2

ok i found that if you only use the radio for hh that some time the % in the tx has more or less and you can get the amount by moving the sens for each cond by watching how much you have in each cond . this is how i set mine up and it work for me , took some work to get right but it work as good as my heli does . let me know if this helps .

mkeigwin
I justed tried with your instruction, but no success.

I was chasing some tail related issues on XTR tonight as well...

My Channel 5 was not getting any signal. I have AVCS active in all flight modes and had the gains all at 70%. I dropped it to 50% and was able to complete the Center Radio Calibration. However, once the simulation started, I was getting drift. I bumped the gains back upto 70% and it seems to be holding.

I verified that the Ch. 5 in the Channel Display (F8) was working with the Rudder stick.

- Dan GoldsteinTeam Revolectrix

tussy, try this solution...

Go into f7 "channel assignment" and UNCHECK channel 5 on the gyro item. Don't assign any channel to the gyro, leave it unassigned.

Then go to the f5 "model parameters" screen and see that the "gyro gain" is set to 100, and that "piezo integral" is selected.

Then try flying and the tail should work in heading hold mode.

If you get any tail problems at that point, make sure that there is no "revolution mixing" or trim offset enabled in the transmitter. If I'm not mistaken, the 9C might have revo mixiing enabled by default in a new setup. Make sure it's inhibited.

the collective
I tried by your instruction still no heading lock.
I confirmed the calibrate center, assign channel and my TX set up are correct. Is some thing wrong with my computer or R e f l e x programe.

This is the link that I attached the demo file, so would you mind to download and see what happen.

Sorry, this one

Once you have made sure that the gyro sensitivity is NOT assigned to any channel, it should be fine. The only thing I can think of at this point is that you either have revo mix active in the transmitter or some trim offset.

I ran through the demo and first thing I noticed is that you're not running the stock heli (what have you tweaked on that model?). Also appears you are inputting rudder in that demo since you can clearly notice it's locked until it's almost nose-in (to your view); once nose-in, it slowly appears to drift. Hard to pin-point, but at this point I'd like to see screenshots of the channel assignment, calibration run, and channel display windows.

I've also watched the demo file and the tail isn't drifting around i think
it's due to the perspective type flaw in Reflex that i posted about quite a while ago.

Basically what happens is the heli appears to drift in yaw whenever you do any prolonged backwards flight off to the right hand side of the screen or the left.

To prove the heli isn't out of trim on the tail and the tail lock is ok you can try this test..

Switch to the basic old scenery with the pilot selectable viewing options
Choose modify simulation parameters or press F6
Change the radio button from fixed viewing position to "following the model" so you can see it closer up all the time

Now keep flying the heli back out directly from nose in (as if heading backwards towards the back centre of the screen all the time)and it should not yaw if the tail really is in trim and is holding ok in the sim,even if you nail all the collective with a lot of aft cyclic for maximum speed
Now try flying backwards off to the right side of the screen and it will appear to yaw round slowly after a while.The same with flying backwards off to the left of side the screen.

Once you become aware of this ,happens in follow mode or fixed viewing modes,it can get a bit annoying.I will normally correct for it at times automatically on the rudder stick depending what i think my view of it ought to be.I can also screw up the yaw perspective in large diameter sideways looping

Hmm, so you have set Ch 5 to either VR-D or E on the 9C Aux screen AND disabled (INH) Gyro in the Gyro Sens menu, correct? After you calibrate with slider centered, go into Reflex's Channel Assignment window, click on Gyro sensibility and when asked to Adjust the channel QUICKLY flick the slider to it's MAX position. Go into the channel display and verify that you get at least 100% on either side; if not, go back into the radio and increase the End-point for channel 5 until you do.

If after all this it still does not work, try using the actual Gyro screen on the 9C after setting Ch 5 to NULL under Aux. Set GY mode, and establish an AVC of 100%, a 0% and a NOR of 100%. Recalibrate and reassign the gyro channel in Reflex as before. Go back to radio GYRO screen and adjust AVC to 85%.